Printing-machine having a continuously-rotating cylinder.



- c. WINKLER. PRINTING IVIACHINE HAVING A CONTINUOUSLY ROTATING CYLINDER.

APPLICATION FILED OCT- 7.191s.

1,241,321 3 PatentedSe-pt. 25,1917.

-2 SHEETS-SHEET I.

//v1 E/V To? Ca/ M72476)" c. WINKLER. PRINTING MACHINE HAVING A CONTINUOUSLY ROTATING CYLINDER.

APPLICATION mzo MIT-7. 1915.

Patented Sept. 25, 191?.

2 SHEETS-SHEET 2 ATTORNEYS CARL wnvKLEn. or BERNE, SWITZERLAND.

earner.

ToaZZ whom it may concern:

Be it known that. I, CARnl/VINKLnR, a citizen. of. the Swiss Republic, residing at Bei'ne, in the Swiss Republic,.have invented new anduseful Improvements in Printing- Machines Having, Continuously-Rotating Cylinders, of. which the following is a specification.

My present invention relates to a printing machine having a continuously rotating printing or sheet, carrying cylinder. According to my invention a press of this kind; is so improved that the attendance and accessibility is much facilitated and the external dimensions are reduced to' a minimum. Further, means are provided to obtain an accurate register in placingthe sheets into the machine and to admit of the sheets being delivered from the printing cylinder with the freshly printed surface upward.

In-the drawing a printingmachine constructed according to my invention is shown by way of example,

Figure l beinga side elevation of same, Fig. 2, a section through the printing cylinder and sheet feeding device'on a larger scale;

Fig. .3 is a front view of'the printing cylinder and sheet. feeding device together with the mechanism for driving said parts.

The sheet feeding device a take the sheets from the feed table 6 arranged over the de livery table 0 and leads-them byits-periodical motion to the printing cylinder cl. Underneath this printing cylinder-d reciprocates the form carriage e, which is moved in known manner by a rotating spur-wheel f engaging first one and then the other of two toothed racks g, h, which, as will be seen from Fig. 2, are provided on the form carriage e. In order to bring the spur-wheel 7. alternately in engagement with said racks g and h, it can be moved in the direction of its axis, or be raised and lowered in its own plane of rotation according to the construction chosen. Before the change in the direction of motion of the carriage 6 takes place a roll z carried by the crank 10 mounted on the shaft of the spur wheel f enters a slot Z, provided at each end of the carriage e and simultaneously the spur-wheel f is moved out of engagement with the toothed rack with which it was in engagement during the stroke being completed. The roll 2' then moves the carriage slowly until the change of Specification of Letters Patent.

Patented Sept. 25, 1917.

Application filed October 7, 1915. Serial No. 54,543.

motion has taken place and then more quickly until the spur-wheel f has been brought into engagement with the other rack, whereupon said roll leaves the slot.

Of essential importance in this printing ma'chineis the fact that the sheets are not fedimmediately from the feed table 6 to the printing cylinder d, but are taken from that-able b by the feed device a and'then forwardediby this device a to the printing cylinder-CZ. The provision of the feed device. a isrendered necessary by the fact that the printing cylinder is rotated in the opposite direction to that of existing printing machines, that is, itrotates toward the feed table, as seen from above. This direction ofrotation of the printing cylinder is necessaryv in order to. cause the sheets to-be-delivered from the printing cylinder to the delivery, table underneath the feed table with the freshly printed surface upward. Bythis arrangement the access'to the machine and its attendance, as above mentioned, are much facilitated'and the outside dimensions ofi'the machine and the arrangement of the various mechanisms are much better'than in existing machines, sothat an economy. of time andspace is effected.

One constructionof-the feed device a is described below by way of example with ref,- erence to Figs. Q'and 3, in which construction-a cylinder isused forv the purpose.

The printing cylinder d isdrivenfrom the driving shaft:by the spur-wheelsm, a, 0. To the printing cylinder (Z is fastened a toothedsegmen-t p, which drives-the spurwheel'g secured to the cylinder (1. As soon as the end 19 leaves the spur-wheel q the cylinder a is arrested by the fork r. This fork r is turned about the pin 1" and is moved by the eccentric s (Fig. 1') by means of the rod 8 When the opposite end of the toothed segment 2 again reaches the spurwheel 9 and the fork r is lowered the cylinder a is turned again.

On both the cylinder 0/. and printing cylinder d gripper mechanism of any suitable kind is provided. The sheets to be printed are placed on the feed table I) against the stops t and are taken hold of by the gripper mechanism t of the feed device a, which can be uniformly done. As the feed device at the time is stationary an exact register is possible. The sheet taken hold of by the gripper mechanism is wound on the cylinder a by the next rotation of said cylinder and I veyed to the table 0.

Fig. 1 shows a device for placing a print protecting sheet on each sheet placed on the table 0. This device consists of the endless belts w and m, which pass over the rolls 'w, w 4:0 w of, w and w, 10 m m 00* respectively. The protective sheet is placed between the rolls to and w being guided by the plate and said sheet is then conveyed by the belts w, w and delivered betweenthe rolls to and 00 to the table 0.

What I claim and desire to secure by Letters Patent of the United States is 1. A printing machine, comprising a feed table, a delivery table below the feed table, a feed-device for feeding the sheets from the feed-table, a continuously rotating impression cylinder, said cylinder rotating in the direction of the feed and delivery tables, a reciprocating form-carriage below the cylinder, and conveying means conveying the sheets from the cylinder to the delivery ta ble, substantially as set forth.

- 2. In a printing machine, a feed table, a feed-cylinder. a continuously rotating impression cylinder, means for intermittently operating the feed cylinder from the impression cylinder, a reciprocating form carriagebelow the impression cylinder, a delivery table below the feed table, a conveying device leading from said impression cyl- 1 inder to the delivery table, and means to divert the front edge of the printed sheets from said continuously rotating cylinder, said'means in one position permitting the sheet on the cylinder to be carried along by said cylinder and when moved into another position serving to direct the sheet on'tosaid conveying device.

3. Aprinting machine, comprising a feed table, a delivery table below the feed table, a feed device for feeding the sheets from the feed table, a continuously rotating im-' pression cylinder, said cylinder rotating in the direction of the feed and deliverytables, a reciprocating form carriage below the cylinder, conveying means conveying the sheets from the cylinder to the delivery table, and means between the feed and delivery tables forplacing a protecting sheet on each sheet placed on the delivery table.

47. In a printing machine, a feed table, a feed cylinder, a continuouslyrotating impression cylinder, means for intermittently operating/the feed cylinder from the impression cylinder, a reciprocating form carriage below the impression cylinder, a delivery table below the feed table, a conveying device leading from the impression cylinder to the delivery table, and'pivoted tongues adapted to be moved toward and from the impression cylinder, said tongues when moved away from the cylinder permitting the sheeton the cylinder to be carried along by said cylinder and when moved toward the cylinder serving to direct the sheets on to said conveying device.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CARL WVINKLER.

Witnesses:

Orro AURBAoH, M. BERTSCHINGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. G. 1 

